mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-30 13:41:48 +00:00
205 lines
4.2 KiB
C
205 lines
4.2 KiB
C
|
/* gstcdplay
|
||
|
* Copyright (c) 2002 Charles Schmidt <cbschmid@uiuc.edu>
|
||
|
|
||
|
* This library is free software; you can redistribute it and/or
|
||
|
* modify it under the terms of the GNU Library General Public
|
||
|
* License as published by the Free Software Foundation; either
|
||
|
* version 2 of the License, or (at your option) any later version.
|
||
|
*
|
||
|
* This library is distributed in the hope that it will be useful,
|
||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
* Library General Public License for more details.
|
||
|
*
|
||
|
* You should have received a copy of the GNU Library General Public
|
||
|
* License along with this library; if not, write to the
|
||
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||
|
* Boston, MA 02111-1307, USA.
|
||
|
*/
|
||
|
|
||
|
gboolean cd_init(struct cd *cd,const gchar *device)
|
||
|
{
|
||
|
struct cdrom_tochdr toc_header;
|
||
|
struct cdrom_tocentry toc_entry;
|
||
|
guint i;
|
||
|
|
||
|
cd->fd = open(device,O_RDONLY | O_NONBLOCK);
|
||
|
|
||
|
if (cd->fd == -1) {
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
/* get the toc header information */
|
||
|
if (ioctl(cd->fd,CDROMREADTOCHDR,&toc_header) != 0) {
|
||
|
close(cd->fd);
|
||
|
cd->fd = -1;
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
/* read each entry in the toc header */
|
||
|
for (i = 1; i <= toc_header.cdth_trk1; i++) {
|
||
|
toc_entry.cdte_format = CDROM_MSF;
|
||
|
toc_entry.cdte_track = i;
|
||
|
|
||
|
if (ioctl(cd->fd,CDROMREADTOCENTRY,&toc_entry) != 0) {
|
||
|
close(cd->fd);
|
||
|
cd->fd = -1;
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
cd->tracks[i].minute = toc_entry.cdte_addr.msf.minute;
|
||
|
cd->tracks[i].second = toc_entry.cdte_addr.msf.second;
|
||
|
cd->tracks[i].frame = toc_entry.cdte_addr.msf.frame;
|
||
|
cd->tracks[i].data_track = (toc_entry.cdte_ctrl == CDROM_DATA_TRACK);
|
||
|
}
|
||
|
|
||
|
/* read the leadout */
|
||
|
toc_entry.cdte_track = CDROM_LEADOUT;
|
||
|
toc_entry.cdte_format = CDROM_MSF;
|
||
|
if (ioctl(cd->fd,CDROMREADTOCENTRY,&toc_entry) != 0) {
|
||
|
close(cd->fd);
|
||
|
cd->fd = -1;
|
||
|
return FALSE;
|
||
|
}
|
||
|
cd->tracks[LEADOUT].minute = toc_entry.cdte_addr.msf.minute;
|
||
|
cd->tracks[LEADOUT].second = toc_entry.cdte_addr.msf.second;
|
||
|
cd->tracks[LEADOUT].frame = toc_entry.cdte_addr.msf.frame;
|
||
|
|
||
|
cd->num_tracks = toc_header.cdth_trk1;
|
||
|
|
||
|
return TRUE;
|
||
|
}
|
||
|
|
||
|
gboolean cd_start(struct cd *cd,gint start_track,gint end_track)
|
||
|
{
|
||
|
struct cdrom_msf msf;
|
||
|
|
||
|
if (cd->fd == -1) {
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
cd_fix_track_range(cd,&start_track,&end_track);
|
||
|
|
||
|
msf.cdmsf_min0 = cd->tracks[start_track].minute;
|
||
|
msf.cdmsf_sec0 = cd->tracks[start_track].second;
|
||
|
msf.cdmsf_frame0 = cd->tracks[start_track].frame;
|
||
|
|
||
|
if (end_track == LEADOUT) {
|
||
|
msf.cdmsf_min1 = cd->tracks[end_track].minute;
|
||
|
msf.cdmsf_sec1 = cd->tracks[end_track].second;
|
||
|
msf.cdmsf_frame1 = cd->tracks[end_track].frame;
|
||
|
} else {
|
||
|
msf.cdmsf_min1 = cd->tracks[end_track+1].minute;
|
||
|
msf.cdmsf_sec1 = cd->tracks[end_track+1].second;
|
||
|
msf.cdmsf_frame1 = cd->tracks[end_track+1].frame;
|
||
|
}
|
||
|
|
||
|
if (ioctl(cd->fd,CDROMPLAYMSF,&msf) != 0) {
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
return TRUE;
|
||
|
}
|
||
|
|
||
|
gboolean cd_pause(struct cd *cd)
|
||
|
{
|
||
|
if (cd->fd == -1) {
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
if (ioctl(cd->fd,CDROMPAUSE,NULL) != 0) {
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
return TRUE;
|
||
|
}
|
||
|
|
||
|
gboolean cd_resume(struct cd *cd)
|
||
|
{
|
||
|
if (cd->fd == -1) {
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
if (ioctl(cd->fd,CDROMRESUME,NULL) != 0) {
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
return TRUE;
|
||
|
}
|
||
|
|
||
|
gboolean cd_stop(struct cd *cd)
|
||
|
{
|
||
|
if (cd->fd == -1) {
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
if (ioctl(cd->fd,CDROMSTOP,NULL) != 0) {
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
return TRUE;
|
||
|
}
|
||
|
|
||
|
/* -1 for error, 0 for not playing, 1 for playing */
|
||
|
CDStatus cd_status(struct cd *cd)
|
||
|
{
|
||
|
struct cdrom_subchnl sub_channel;
|
||
|
|
||
|
if (cd->fd == -1) {
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
sub_channel.cdsc_format = CDROM_MSF;
|
||
|
|
||
|
if (ioctl(cd->fd,CDROMSUBCHNL,&sub_channel) != 0) {
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
switch (sub_channel.cdsc_audiostatus) {
|
||
|
case CDROM_AUDIO_COMPLETED:
|
||
|
return CD_COMPLETED;
|
||
|
break;
|
||
|
case CDROM_AUDIO_PLAY:
|
||
|
case CDROM_AUDIO_PAUSED:
|
||
|
return CD_PLAYING;
|
||
|
break;
|
||
|
case CDROM_AUDIO_ERROR:
|
||
|
default:
|
||
|
return CD_ERROR;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
gint cd_current_track(struct cd *cd)
|
||
|
{
|
||
|
struct cdrom_subchnl sub_channel;
|
||
|
|
||
|
if (cd->fd == -1) {
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
sub_channel.cdsc_format = CDROM_MSF;
|
||
|
|
||
|
if (ioctl(cd->fd,CDROMSUBCHNL,&sub_channel) != 0) {
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
|
||
|
return sub_channel.cdsc_trk;
|
||
|
}
|
||
|
|
||
|
gboolean cd_close(struct cd *cd)
|
||
|
{
|
||
|
if (cd->fd == -1) {
|
||
|
return TRUE;
|
||
|
}
|
||
|
|
||
|
if (close(cd->fd) != 0) {
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
cd->fd = -1;
|
||
|
|
||
|
return TRUE;
|
||
|
}
|
||
|
|